239854381 has 8 divisors (see below), whose sum is σ = 259053984. Its totient is φ = 220761840.

The previous prime is 239854367. The next prime is 239854393. The reversal of 239854381 is 183458932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 239854381 - 2¹⁵ = 239821613 is a prime.

It is a super-2 number, since 2×239854381² = 115060248169786322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239854361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22075 + ... + 31096.

It is an arithmetic number, because the mean of its divisors is an integer number (32381748).

Almost surely, 2^239854381 is an apocalyptic number.

It is an amenable number.

239854381 is a deficient number, since it is larger than the sum of its proper divisors (19199603).

239854381 is a wasteful number, since it uses less digits than its factorization.

239854381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53531.

The product of its digits is 207360, while the sum is 43.

The square root of 239854381 is about 15487.2328386965. The cubic root of 239854381 is about 621.3207890705.

The spelling of 239854381 in words is "two hundred thirty-nine million, eight hundred fifty-four thousand, three hundred eighty-one".